39 lines
1.1 KiB
TypeScript
39 lines
1.1 KiB
TypeScript
/**
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* Pricecaster Service.
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*
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* Fetcher backend component.
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*
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* Copyright 2022 Wormhole Project Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { IStrategy } from '../strategy/strategy'
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export interface IPriceFetcher {
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start(): void
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stop(): void
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hasData(): boolean
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/**
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* Set price aggregation strategy for this fetcher.
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* @param IStrategy The local price aggregation strategy
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*/
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setStrategy(s: IStrategy): void
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/**
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* Get the current price of a symbol, according to running strategy.
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*/
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queryData(id: string): any | undefined
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}
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